The HITMAN Add-on for HITMAN 3 has 13 achievements worth 195 gamerscore.
All achievements
Achievements they've won
Achievements they've not won
Complete A Gilded Cage.
Complete The Showstopper.
Reach Paris Mastery Level 20.
Complete World of Tomorrow.
Reach Sapienza Mastery Level 20.
Reach Marrakesh Mastery Level 20.
Complete Suit Only and Silent Assassin Challenges on The Icon, A House Built on Sand or Landslide.
Complete Club 27.
Reach Bangkok Mastery Level 20.
Complete Freedom Fighters.
Reach Colorado Mastery Level 20.
Complete Situs Inversus.
Reach Hokkaido Mastery Level 20.